Perhaps you should try some spelling variations:
sash » wash, cash, hash
slas » slabs, seas, sas
sath » sathe, sathi, path
saith » smith, faith, saito
sweat » sweet, swept
spate » spater, space, spite
spaten » spatern, spacen, spiten, spater, spateren
-plate » -plates, -place

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((sash OR slas) OR (((sath OR saith) OR sweat) OR (spate OR spaten)))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((sash or slas) or (((sath OR saith) or sweat) or (spate or spaten)))-plate".
• Adding a wildcard symbol may retrieve word variants: ((sash or slas) or (((sath OR saith) or sweat) or (spate or spaten)))-plate*.